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Proceedings Article

Enlargement of measurement range of simplified BOCDA fiber-optic distributed strain sensing system using a temporal gating scheme

[+] Author Affiliations
Kazuo Hotate, Hiroshi Arai

The Univ. of Tokyo (Japan)

Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, 184 (August 30, 2005); doi:10.1117/12.623707
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From Conference Volume 5855

  • 17th International Conference on Optical Fibre Sensors
  • Bruges, Belgium | May 23, 2005

abstract

We propose a method to enlarge the measurement range for Brillouin Optical Correlation Domain Analysis system simplified with time-division pump-probe generation scheme. In this system, the pump and probe lightwaves, which are modulated in frequency with a sinusoidal waveform to localize the stimulated Brillouin scattering periodically, are additionally gated temporally to select only one localized position. We successfully measured distribution of fiber Brillouin gain spectrum over 250m measurement range with 8cm spatial resolution.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Kazuo Hotate and Hiroshi Arai
"Enlargement of measurement range of simplified BOCDA fiber-optic distributed strain sensing system using a temporal gating scheme", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, 184 (August 30, 2005); doi:10.1117/12.623707; http://dx.doi.org/10.1117/12.623707


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